Keller school district officials sent letters last week to parents of students at Florence Elementary School about a staph infection on campus.
A Florence employee has methicillin-resistant Staphylococcus aureus (MRSA), a skin infection that is difficult to treat because it is resistant to many common antibiotics. Four to five cases of MRSA are reported in the district each year, said Bryce Nieman, a district spokesman.
Staph is spread primarily by skin-to-skin contact, or direct contact to wound drainage or items contaminated with the bacteria. The letter from Florence Principal Laura Lockhart encouraged parents to watch for swollen, red areas on the skin.
If left untreated, the disease can infect blood and bones.
A letter was also sent to parents and staff at Westlake Academy because some students there have siblings at Florence, which is in Southlake.
"Staff members have been specifically instructed on what MRSA is and what it looks like, as well as the procedures to maintain environments nonsuitable for the bacteria," the Westlake letter states.